Which is cheaper, the Smith & Bradley Atlantis A2 Auto or the Seiko Prospex Sea?

At MSRP the Smith & Bradley Atlantis A2 Auto is the cheaper of the two at $789, against $1,500 for the Seiko Prospex Sea — a $711 gap before any retailer discounting.

Which is bigger, the Smith & Bradley Atlantis A2 Auto or the Seiko Prospex Sea?

The Smith & Bradley Atlantis A2 Auto wears larger at 44mm versus 43.5mm for the Seiko Prospex Sea — a 0.5mm difference across the dial.

Which has better water resistance, the Smith & Bradley Atlantis A2 Auto or the Seiko Prospex Sea?

The Smith & Bradley Atlantis A2 Auto is rated to 300m versus 200m for the Seiko Prospex Sea.

Which has a longer power reserve, the Smith & Bradley Atlantis A2 Auto or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 38 hours on the Smith & Bradley Atlantis A2 Auto.

What movement does the Smith & Bradley Atlantis A2 Auto run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Smith & Bradley Atlantis A2 Auto uses the Sellita SW200 and the Seiko Prospex Sea uses the 6R35.

Side by side

Smith & Bradley Atlantis A2 AutovsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Add a watch

Smith & Bradley Atlantis A2 Auto

copy-of-atlantis-automatic-watch

MSRP $789

Seiko Prospex Sea

spb349j1

MSRP $1,500

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At a glance

11 of 29 specs differ

Diameter

Atlantis A2 Auto44mm

Prospex Sea43.5mm

Power Reserve

Atlantis A2 Auto38h

Prospex Sea70h

Water Resistance

Atlantis A2 Auto300m

Prospex Sea200m

MSRP

Atlantis A2 Auto$789

Prospex Sea$1,500

Full specifications

Case

5 specs

Diameter

44mm

43.5mm

Thickness

12mm

13.3mm

Lug-to-Lug

46mm

51mm

Material

Stainless Steel

Titanium

Water Resistance

300m

200m

Crystal & Dial

2 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

None

LumiBrite on hands and index(es)

Movement

3 specs

Caliber

Sellita SW200

6R35

Power Reserve

38h

70h

Jewels

Pricing

1 specs

MSRP

$789

$1,500

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Smith & Bradley Atlantis A2 AutovsSeiko Prospex Sea

At a glance

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